diff --git a/includes/i18n/languages.php b/includes/i18n/languages.php
index 387ec3ea4..a6b60a481 100644
--- a/includes/i18n/languages.php
+++ b/includes/i18n/languages.php
@@ -4,6 +4,7 @@
     // English first
     "en" => ["name" => "English", "dir" => "ltr"],
     // Remaining sorted alphabetically by language code
+    "cs" => ["name" => "Čeština", "dir" => "ltr"],
     "de" => ["name" => "Deutsch", "dir" => "ltr"],
     "el" => ["name" => "Ελληνικά", "dir" => "ltr"],
     "es" => ["name" => "Español", "dir" => "ltr"],